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Originally Posted by SaRaNaC
Al frist i wanna say nice setup
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Thanks.
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i have a question. what is the white stuff you put on the rockwool, i am guessing it fights algae
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It's
Fytocell, a polymer resin plant growing medium.
Algae will grow on any medium that you can grow a plant in, but watering by flooding the media from the bottom keeps the tops rather dry, too dry to support algae most of the time.